Hurry-up Pasture

What can I plant this fall which would produce pasturage for a small
amount of stock this winter, and until I can get the land under
irrigation and seeded to alfalfa?

For quick fall and winter growth nothing is better probably than oats
and vetches sown together as soon as you get rain enough to plow, but it
would be a question whether it is worth while to work for that, because
you ought to get your land ready for February sowing of alfalfa and that
will keep the land busy after the rain gets it into working condition.